The effect of feeding iodinated casein to pigs

Seven experiments are reported in which iodinated casein was fed to pigs. The daily doses varied from 0·25 to 1·5 g. of iodinated casein per pig daily for periods of several weeks. While the higher doses adversely affected the rate of growth of the pigs, the smaller doses were not sufficiently effective to have any practical importance.The thyroid glands of the pigs receiving the iodinated casein appeared to be slightly smaller in size, but their histological picture was not affected.